Manufacture of ridge-caps for corrugated roofing



2 Sheets-Sheen 1 J. MANUFACTURE OF RIDGE GAPS FOR CORRUGATED ROOFING.No. 317,868. Patented May 12, 1885,

. INVENTOR! WITNESSES:

BY I

ATTORNEY.

2 Sheets'-Sheet 2.

J. SMITH. MANUFACTURE OF RIDGE GAPS FOR CORRUGATED ROOFING.

(ModeL) Patented May 12, 1885.,

INVENTOR,

ATTORNEY.

WITNESSES UNHTJED Starts JOHN SMITH, or KANSAS orrr, MISSOURI.

Parent @rrrcn.

' MANUFACTURE OF RlDGE-CAPS FOR CORRUGATED ROOFBMG.

, SPECIFICATION forming part of Letters Patent No. 317,868, dated May12, 1885.

Application filed November 3, 1884.

To all whom it may concern."

Be it known that I, J OHN SMITH, of Kansas City, Jackson county;Missouri, have invented certain new and useful Improvements in theManufacture of Ridge-Caps, &c., for Gorrugated Roofing, of which thefollowing is a full, clear, and exact description.

The object of my invent-ion is to construct sheet-metal ridge-caps froman'integral sheet in. such a manner that comparatively watertight jointsmay-be formed between the cups and the underlying corrugatedroof-sheets.

Myinvention consists, principally, as an improvement in methods ofabruptly bending corrugatedmetal sheets across the corrugations thereof,substantially as and for the purposes hereinafter specified.

Reference is to be had to the accompanying drawings, forming part'ofthisspecification,in which similar letters of reference indicatecorresponding partsin each figure.

Figure 1 is a plan of the upper, surface of one of my improvedridgecaps. Fig. 2exhibits a slight modification in the method of bendingthe'samc. Fig. 3 is a half-section upon line a a, and the same upon lineb b, Fig. I. Fig. 4 is a section through that portion of the sheetcoming in contact with the -lmilding. Fig. 5 is a section through theapex of a corrugation. Fig. (i is a perspective view of a varied form ofthe ridge-cap applied to the upop the longitudinal line ff, Fig. 2.

and Fig. 7 is a sectionl igs. 8 and 9exhibit my improved corrl'lgatedsheets inverted and applied to a building in the form of flashings, andFigs. 10 and 11. show the manner in which they are used in the formofguttersand eaves.

Heretofore ridge-caps for corrugated roof ing have usually beenconstructed somewhat of the form shown in Fig. (i; but their overlappingedges were devoid of the corrugations a, and their plain surfaces restedupon a lining-strip of wood. This strip was provided withaplain uppersurface; but the surface next the roof-sheets, in order to form a jointtherewith, was corrugated laterally'along the entire lengthcorresponding to the concavities of the said sheets.

In constructing my improved ridge-cap I roof of a building;

,provide a ready-corrugated sheet, H, of suitable dimensions, and bendit to any predetermined angle .at or near its central line across itscorrugations, and in so doing form (Modeh) corrugations at the saidpoint are practically done with and a straight line is formed in thesheet. I accomplish this byforming crimps or raised portions A upon thesaid bead or apex A as it is being formed. ,These are preferably formedupon a line, a a or d d, with the convex portions of the corrugations.The said raised portions (as shown in the drawings) taper outwardly fromthe sides of the bead A to a point, as E or B. 1

- If desired, the head A may be formed with a comparatively abrupt apcx,(indic-ated by D in Fig. 1,) and, in asimilar man nerto the raisedportions, terminate at a point, 0, within the concavities of thecorrugations. In Fig. 7 it will be noticed how the metal is-folded at 0above the bead A. By heating the sheet sufficiently before the bendingpro-- cess is begun I am enabledto form a ridgecap' with a' plain head,as shown in Fig. 6.

I prefer that the sheets above described be allixed to the roofs, &c.,of buildings by means of the improved fastening-hooks specified in my I]nit-ed States Patent No. 297,862.

Having thus described my invention, I claim as new and desire to secureby Letters Patent-- 1. A corrugated sheet of metal for roofing purposes,having acomparativcly abrupt bend or bonds directly across itscorrugations, whereby the converging edges thereof may form any desiredangle with each other, substantially as specified.

2. A sheet of metal for roofing purposes,

having corrugated sides diverging 'from an apcxial bead formed integraltherewith, sub-.

